TY  - BOOK
AU  - Sobel,Max A.
AU  - Maletsky,Evan M.
TI  - Teaching mathematics: a sourcebook of aids, activities, and strategies 
SN  - 0138941394
PY  - 1974///
CY  - Englewood Cliffs, N.J.
PB  - Prentice-Hall
KW  - Mathematics
KW  - Study and teaching (Secondary)
N1  - Includes bibliographies
ER  -